However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
If you want to become a marine biologist you will have to learn about science. Ask your teachers for projects to do with living creatures. Don't think that you only need to know biology.Marine creatures are made of chemicals and they are physical things, just like plastic toys and wooden chairs.f you truly wanted to do research on marine mammals you could enter this field through one of two routes. First, you could become a biology major in college, taking courses in vertebrate biology, physiology and evolution.